Amide and carbamate diphosphonates and process for their manufacture

ABSTRACT

Phosphorus compounds are provided which correspond to the formula   WHEREIN EACH R is an alkyl, alkenyl or halogenalkyl radical, X and X&#39;&#39; each is a methyl radical or a hydrogen atom, Y and Y&#39;&#39; each is an alkyl radical or a hydrogen atom and A is an alkyl, halogenalkyl, hydroxyalkyl or a phenyl or benzyl group which both may be halogen substituted. The phosphorus compounds are manufactured from the corresponding phosphorus carboxylic acid amides and carbamates and formaldehyde. These compounds optionally together with a curable aminoplast precondensate are useful for flameproofing and creaseproofing of cellulosecontaining fiber materials.

United States Patent N achbur et al.

[54] AMIDE AND CARBAMATE DIPHOSPHONATES AND PROCESS FOR THEIR MANUFACTURE [72] Inventors: Hermann Nachbur, Dornach; Arthur Maeder, Therwil, both of Switzerland [73] Assignee: Clba-Geigy AG, Basel, Switzerland [22] Filed: Dec. 16, 1969 [21 1 Appl. No.: 885,645

[30] Foreign Application Priority Data Dec. 24, 1968 Switzerland ..l9236/68 521 U.S.Cl ..260/932, 260/938, 260/968,

117/136 511 1111.0 ..C07f9/38,D06c 27 00 [58] FieldofSearch ..260/932,968

[ 56] References Cited UNITED STATES PATENTS 3,351,617 11/1967 .laeger et al. ..260/932 X Primary ExaminerLewis Gotis Assistant Examiner-Anton H. Sutto I Attorney-Jiarry Goldsmith, Joseph G. Kolodny and Mario A.

Monaco 1451 July 25, 1972 [57] ABSTRACT Phosphorus compounds are provided which correspond to the formula ll Claims, No Drawings AMIDE AND CARBAMATE DIPHOSPHONATES AND PROCESS FOR THEIR MANUFACTURE The subject of the invention are phosphorus compounds of preferred.

Phosphorus compounds of formula wherein R,, R R, and R each denote an alkyl, alkenyl or halogenalkyl residue with at most 4 carbon atoms, X and X each represent a methyl residue or preferably a hydrogen atom, Y and y each represent an alkyl residue with at most four carbon atoms or a hydrogen atom and A represents an alkyl residue with one to 22 carbon atoms, a halogenalkyl residue with at most four carbon atoms, a hydroxyalkyl residue with at most four carbon atoms, an alkenyl residue with two to 22 carbon atoms or a phenyl or benzyl group which both may be halogen substituted.

Particularly advantageous phosphorus compounds correspond to the formula or an alkenyl residue with two to four carbon atoms are of particular interest.

K At the same time phosphorus compounds of formula wherein A, represents an alkyl residue with one to 22 carbon atoms, a halogenalky] residue with at most four carbon atoms, an alkenyl residue with two to 22 carbon atoms or a phenyl or wherein R represents an ethyl residue or especially a methyl residue and A represents an alkyl residue with one to four carbon atoms are of particular interest, such as for example benzyl group which both may be halogen substituted and R,, 5 the compound of formula R R,', R,', X, X, Y and Y have the indicated significance.

Symmetrical phosphorus compounds of formula X (JO X The phosphorus compounds of formulas l) to (6) are appropriately manufactured by (a) reacting a condensation product of (a') 2 mols of at least one compound of formula wherein R,, R, and X have the indicated significance and (b') 1 mol of a carbamate of formula A CO NH,

wherein A has the indicated significance, and wherein the H,N group of component (a') is monomethylolated or the H,N group of component (b') is dimethylolated and optionally etherified, with (b) 2 mols of formaldehyde or of a formaldehyde-releasing agent, at elevated temperature, optionally in the presence of a basic catalyst, and (c) optionally subsequently still etherifying with l to 2 mols of an alkanol with at most four carbon atoms.

The preferred procedureis that (a)(a') 2 mols of a compound of formula (7) are methylolated with 2 mols of formaldehyde or of a formaldehyde-releasing agent, subsequently (b') reacted with 1 mol of a carbamate of formula (8) in the absence of water, in an inert solvent, at elevated temperature, the resulting product thereafter (b) methylolated with 2 mols of formaldehyde or of a formaldehyde-releasing agent and subsequently optionally still (c) etherified with l to 2 mols of an alkanol with at most four carbon atoms.

The methylol compound of component (a') can optionally also be reacted with component (b) in the presence of an acid catalyst such as for example sulphuric acid, phosphoric acid or preferably p-toluenesulphonic acid.

The reaction with the carbamate is appropriately carried out at temperatures of 60 to 150C.

The methylolations with formaldehyde or with a formaldehyde-releasing agent are carried outv according to known methods, preferably in the presence of a basic catalyst such as for example magnesium oxide, sodium hydroxide, potassium hydroxide or sodium ethoxide, and at temperatures of 60 to 120C. Preferably, anhydrous formaldehyde, especially in the form of paraformaldehydefls used at least for the methylolation of the primary-CONH, groups.

In order to manufacture the compounds of formulas (l) to (6), phosphonocarboxylic acid amides of formula wherein R and X have the indicated significance are preferably used.

Phosphonocarboxylic acid amides of formula I wherein R, denotes a methyl or ethyl residue are of particular interest. v

Particularly suitable compounds of formula (I) are obtained by the use of 3-(dimethylphosphono)-propionic acid amide as component a).

Other compounds of formula (9) are for example 3-(dialkyl-phosphono)-propionic acid amide, 3-(bis-2- chlorethylphos-phono)-propionic acid amide, 3-(di-n-butylphosphono)-propionic acid amide, 3-(diethylphosphono)- propionic acid amide or 3-(dimethylphosphono)-2-methylpropionic acid amide.

Particularlysuitable carbamates for the manufacture of the phosphorus compounds of formulas I to (6) correspond to the formula A,OCO-NH, or especially the formula :'.0'r'o.vm wherein A, and A, have the indicated significance.

Carbamates of formula A, O CO Ni l wherein A, denotes an alkyl residue with one to four carbon atoms, such as for example methylcarbamate, demand particular interest.

Other suitable carbamates are for example hydroxyethylcarbamate, 2,3-dibromopropylcarbamate, stearylcarbamate or alkylcarbamate.

If one still wishes to etherify the reaction product of components (a), (b) and (c), then this is preferably done with methanol.

Another process for the manufacture of the phosphorus compounds of formulas (l) to (6) consists of first dimethylolating 1 mol of a carbamate of formula (8) with 2 mols of formaldehyde or a formaldehyde-releasing agent, subsequently reacting the product with 2 mols of a phosphonocarboxylic acid amide of formula (7) in the absence of water, in an inert solvent, at elevated temperature, again methylolating with 2 mols of formaldehyde or a formaldehyde-releasing agent, and subsequently optionally still etherifying with l to 2 mols of an alkanol with at most four carbon atoms, preferably methanol.

schematically, the two reaction routes can for example be represented as follows:

Route 1: (a) (a') -C O-NH2 CHzO l CHaO H2NCO 7 (etherify optionally) H-If-H etherify optionally CIT-2O H-If-H 01110 The invention also relates to a process for the flame-proofing and creaseproofing of cellulose-containing fiber materials, characterized in that an aqueous preparation isapplied to these materials which contains at least one phosphorus compound of one of formulas l) and (6) and optionally a curable aminoplastic precondensate, and that the materials are thereafter dried and subjected to a treatment at elevated temperature.

In particular, phosphorus compounds of formula (2) are used for the flameproofing and creaseproofing of cellulosecontaining textile material. Phosphorus compounds of formulas (3) to (5) are preferred, and the process for flameproofing and creaseproofing is of very particular interest if the compound offormula (6) is used.

The pH-value of the aqueous preparations containing the compounds of formula (I) is advantageously less than 5, in particular less than 3. In order to achieve this, mineral acids such as sulphuric acid, nitric acid, orthophosphoric acid or hydrochloric acid are added to the preparations. Instead of the acids themselves, especially instead of hydrochloric acid, it is also possible to use compounds from which the corresponding acids are easily formed in water by hydrolysis, for example even without warming. As examples, there may here be mentioned phosphorus trichloride, phosphorus pentachloride, phosphorus oxychloride, thionyl chloride, sulphuryl chloride,

cyanuryl chloride, acetyl chloride and chloracetyl chloride.

These compounds exclusively yield acid decomposition products, for example cyanuric acid and hydrochloric acid, on hydrolysis. Now it can be advantageous to employ, instead of one of the strong acids mentioned, the acid mixtures corresponding to the hydrolysis products of one of the compounds just mentioned, that is to say for example to employ, instead of hydrochloric acid or orthophosphoric acid alone, a mixture corresponding to phosphorus pentachloride of hydrochloric acid and orthophosphoric acid, appropriately in a molecular ratio of5: l.

The preparations for flameproofing can also contain a latent acid catalyst for accelerating the cure of the aminoplast precondensate which is optionally present and for crosslinking the compounds of formula (1). As latent acid catalysts it is possible to use the catalysts known for curing aminoplasts on cellulose-containing material, for example ammonium dihydrogen orthophosphate, magnesium chloride, zinc nitrate, and especially ammonium chloride and others.

Apart from the compounds of formula l) and the additives required for adjusting the pl-l-value, the preparations to be used according to the invention can contain yet further substances. An addition of aminoplast precondensates is advantageous, but not necessary, for achieving a good wash-resistant flameproof finish.

By aminoplast precondensates, addition products of formaldehyde to nitrogen compounds which can be methylolated are understood. 1,3,5-Amino4riazines such as N-substituted melamines, for example N-butylmelamine, N- trihalogenomethyl melamines, as well as ammeline,

or also diguanamine, may be mentioned. Further possibilities are also: alkylureas or arylureas and alkylthioureas or arylthioureas, alkyleneureas or alkylenediureas, for example ethyleneurea, propyleneurea, acetylenediurea or especially 4,5-dihydroxyimidazolidone-2 and derivatives thereof, for example the 4,5-dihydroxyimidazolidone-2 which is substituted in the 4-position at the hydroxyl group by the residue CH CH CONHCH OH. Preferably, the methylol compounds ofa urea, of an ethyleneurea or especially of melamine are used. Particularly valuable products are in general furnished by products which areas highly methylolatcd as possible. Suitable aminoplast precondensates are both predominantly monomolecular and also more highly precondensed aminoplasts.

The ethers of these aminoplast precondensates can also he conjointly used with the compounds of formula (3). The ethers of alkanols such as methanol, ethanol, n-propanol. isopropanol, n-butanol or pentanols are for example udvantageous. It is however desirable for these aminoplast precondensates to be water-soluble, such as for example the pentamethylolmelamine-dimethyl-etherl It can also be advantageous if the preparations contain a copolymer, obtainable by polymerization in aqueous emulsion, of(a) 0.25 to 10 percent of an alkaline earth metal salt of an a,/3-ethylenically unsaturated monocarboxylic acid, (b) 0.25 to 30 percent of an N-methylolamide or N-methylolamide-ether of an a,B-ethylenically unsaturated monocarboxylic or dicarboxylic acid and (c) 99.5 to 60 percent of at least one other copolymerizable compound. These copolymers and their manufacture are also known. The tear strength and abrasion resistance of the treated fiber material can be favorably influenced by the conjoint use of such a copolymer.

As a further additive which is advantageous in some cases, a plasticizing dressing, for example and aqueous polyethylene emulsion or ethylene copolymer emulsion, should be mentioned.

The content of compound of formula (I) in the aqueous preparation is appropriately such that 10 to 28 percent are applied to the material to be treated. Here it is necessary to take into account that the commercial textile materials of native or regenerated cellulose can absorb between 50 and 120 percent of an aqueous preparation. As a rule the aqueous preparations contain 100 to 700 g/l, preferably 300 to 500 g/l, of phosphorus compound of formula l The amount of the additive required to adjust the hydrogen ion concentration to a value of less than 5 is dependent on the selected value itself and on the nature of the additive, whilst in any case less than a certain minimum cannot be used. A certain excess over this minimum amount is generally to be 7 recommended. Large excesses offer no advantages and can even prove harmful.

If a polymer of the indicated nature is further added to the preparation, then this is advantageously done in small amounts, for example 1 to 10 percent relative to the amount of the compound of formula (1). The same is true of a plasticizer which may be used, where the appropriate amounts can again be 1 to 10 percent. I

The preparations are now applied to the cellulose-containing fiber materials, for example linen, cotton, acetate rayon, viscose rayon or also fiber mixtures of such materials and others such as wool, polyamide or polyester fibers, and this can be carried out in a manner which is in itself known. Particularly good effects are achieved on cotton. Preferably, piece goods are used and these are impregnated on a padderof the usual construction which is fed with the preparation at room temperature.

lOlO46 0340 This duration of warming is for example 2 to 6 minutes at tem- The structure of formula (6) can be confirmed by elementaperatures of 140 to 170C. ry analysis, mass spectroscopy and infrared spectroscopy.

A rinse with an acid-binding agent, preferably with aqueous The compounds of Examples 2 to 9 can also be purified and sodium carbonate solution, for example at 40C to the boiling identified in an analogous manner. point and for 3 to 10 minutes, is advisable in the case of a strongly acid reaction medium. EXAMPLE 2 As already indicated, it is possible, using the present 21 1 pans (1 mol) of 3 dimethylphosphono) methylol process, to obtain flameproof and creaseproof finishes which propionic acid amide (obtained methylolation of remain largely preserved even after repeated washing or dry (dimethylphos-phono)-propionamide) together with 52.5 cleaning and which do not cause any unacceptable reduction parts (0.5 mol) of hydroxyethylcarbamate and 1.2 parts of pin the mechanical textile properties of the treated material. toluenesulphonic acid monohydmtc are Suspended in 200 A pamcular advantage f h present proc ess fact that parts of toluene in a stirred flask of 500 volume units capacity, the treated cellulose-containing fiber materials are simultaneequipped with a thermometer water separator and reflux com ously flameproof and creaseproof, even without the conjoint I 5 denser and condensed at the reflux temperature of the use of afnmoplasuc Precondensates' To the f that h toluene. The water formed is removed azeotropically and colalkyl resldue A of the compound offormula 1 a long lected in the water separator. After 5 hours the reaction has f example behenyl or siearyl) a water'repenem efinect can ended and 19 parts of water are obtained. Thereafter the mixf also be achleved, ture is cooled to 100C, 30.7 parts of 97.5 percent strength n Pamcu wet P propertfes of the treated 20 paraformaldehyde and 2 parts of magnesium oxide are added mafenals f lmprived alongslde h flameproof and the whole is treated for a further minutes at 100C. It is fimsh' A d'snnct Improvement m the dry creasing angle can then cooled to room temperature, diluted with 240 parts of e Observed d h l h 11 methanol, traces of insoluble constituents are filtered off, and e P an pans e examp es w o f are subsequently the methanol is removed in vacuo at 40 to 50C. units by weight unless otherwise stated. The relationship of 25 266 parts of a yellowish syrupy product are obtained which parts by volume to parts by weight is as of ml to g. shows an active substance content of 100 percent and which,

EXAMPLE 1 on the basis of the formaldehyde content found, largely corresponds to the dimethylol compound of formula (14). The 220 parts (*I mol) of 96 percent strength 3[- d t i waterol bl I II3C-O O O O-CH;;

1 HOHzO CHzOH \P/ dimethylphosphonoI-methylolpropionamide manufactured by EXAMPLE 3 methylolation of 3-(di-methylphosphono)propionanide, and

37.5 parts (0.5 mol) of methylcarbamate are brought to the 40 70.3 parts (0.33 mol) of 3-(dimethylphosphono)-methylolboil under reflux, in the presence of 1.2 parts of ppropionic acid amide (obtained by methylolation of 3- toluenesulphonic acid and 200 parts of benzene, in a 500 parts (dimethylphosphono)-propionic acid amide) together with by volume stirred flask equipped with a water separator and a 43.5 parts (0.166 mol) of 2,3+dibromopropylcarbamate and thermometer, whilst stirring rapidly. Over the course of 12 0.5 part of p-toluenesulphonic acid monohydrate are hours 20 parts of water of condensation are formed in this way suspended in 200 parts of benzene in the apparatus described and collected in the water separator. After this time no further in Example 2 and are condensed at the reflux temperature-of water is formed. The benzene is distilled off and thereafter the benzene. After 6 hours the reaction has ended and 5 parts 30.7 parts (-l mol) of paraformaldehyde (97.5 percent of water were obtained. Thereafter the mixture is cooled to strength) and 2 parts of magnesium oxide are added at C. 60C, l0.3 parts of paraformaldehyde (97.5 percent strength) Hereafter the mixture is heated to 100C and kept at this tem- 50 and 07 part of magnesium oxide are-added, and the whcl; perature of 30 minutes, after which it is cooled to room temtreated for 30 minutes at 100C internal temperature. It is perature. It is then diluted with 250 parts of methanol, the then cooled to room temperature, being further diluted with solution is clarified by filtration and the methanol is removed 50 parts of water at 80C, and clarified by filtration, and sub in vacuo. sequently the water and benzene are removed in vacuo at 40 230 parts of the product of formula (6) are obtained in the to 50C.

form of a colorless syrup which gives a clear solution in water A viscous paste is obtained which is water-soluble and is adand reacts neutral. justed to 80 percent active substance content with water. On A 20 percent strength aqueous solution is prepared from the basis of the formaldehyde content found it can be assumed this product and extracted with chloroform in the extraction that a product of formula l 5) is present to the extent of about apparatus. The chloroform phase is isolated and freed of 80 percent.

Br Br chloroform in vacuo. A 20 percent aqueous solution is again EXAMPLE4 prepared from the residue and extracted with carbon tetrachloride in the extraction apparatus. Here the aqueous 263 parts (1 mol) of 3(dialkylphosphono)-methylolphase is now isolated, freed of water in vacuo and dried for 24 propionic acid amide (obtained by methylolation of 3-(dialhours over P 0 The resulting syrupy product is checked for kylphosphono)- propionic acid amide) together with 37.5 purity by means of thin layer chromatography and apart from parts (0.5 mol) of methylcarbamate and 1.2 parts of ptrace contaminations givesasingle substance chromatogram. toluenesulphonic acid monohydrate are suspended in 200 parts of toluene in the apparatus described in Example 2, and EXAMPLE 6 condensed at the reflux temperature of the toluene. After hours the reaction has ended and 18 parts of water are obtained. Thereafter the mixture is cooled to 100C, 30.7 parts of paraformaldehyde (97.5 percent strength) and 2 parts of 5 magnesium oxide are added, and the whole is treated for a An analogous procedure to Example 4 is followed in the apparatus described in Example 2, with the exception that 225 parts (1 mol) of 3-[dimethylphosphono]-2-methyl-methylolpropionic acid amide (obtained by methylolation of 3- o [dimethyl-phosphono]-2-methyl-propionic acid amide) are 2223; 2222; 2 12 3 gl py glzz fi s g sfz gg used instead of the dialkyl compound. After 4 hours the reacbasis of the formldeh dc content found r d tron has ended and 17.5 parts of water have been obtained.

y 60 respon s prac l The reaction with paraformaldehyde is carried out 1Q g gg grsgg x tjg 23;? ggs gfgz zszz lztgrf$2333: analogously, but after cooling the mixture is diluted with 250 parts of dimethylformamidc. traces of insoluble constituents lf instead of 3-(dialkylphosphono)-methylolpropionic acid are filtered off, and the dimethylformamide and toluene amide, 3-( dimethylphosphono)-methylolpropionic acid amide removed in vacuo. is sued and instead of methylcarbamate, stearylcarbamate is A highly viscous brownish-colored product is obtained used, in the same molar amounts, a product which corwhich shows an active substance content of about 100 perresponds to the formula (17) is obtained in an analogous cent. The product is insoluble in water and, on the basis of the manner. formaldehyde values found, corresponds to theformula 19).

( H3CO O O OCH3 P CHJOH CHzOH /P II3C-O O O OCH3 (19) 4 l CIIZOII CIIzOlI P ]'IsC-O ClIg-C-(}()N(Jlizi}ICl-IzN-OOC-H:C OC1'Ia (Hi3 (JO-O-Cll: CH3

EXAMPLE 5 EXAMPLE 7 An analogous procedure to Example 4 is followed .inthe ap- 200 parts of 3-(di-n-butylphosphono)-propionic acid paratus described in Example 2, with the exception that 308 methylolamide (obtained by methylolation of 3(di-n-buparts (1 mol) of 3-(bis-2-chlorethylphosphono)-methyloltylphosphon0)propionic acid amide) together with 28.2 parts propionic acid amide (obtained by methylolation of 3-(bis-2- of methylcarbamate and 1 parts of p-toluenesulphonic acid chlorethylphosphono)-propionic acid amide) are used instead monohydrate are suspended in 200 parts of xylene in the apof the diallyl compound. After 1% hours th rea tio h paratus described in Example 2, and condensed at the reflux ended and 16 parts of water are obtained. Thereafter the mixtemperature of the xylene. After 6 hours the reaction has ture is cooled to 100C, 30.7 parts of paraformaldehyde (97 5 ended and 12.5 parts of water have been obtained. Thereafter percent strength) and 2 parts of magnesium id an add d, the xylene is distilled off in vacuo and subsequently 23.] parts and the whole is treated for a further 30 minutes at 100C. It is of P Strength Paraformaldehyde and Parts of then cooled to ro temperature, dil d i h 240 parts of magnesium oxide are added. Hereafter the mixture is treated methanol, insoluble constituents are filtered off, and the for 30 minutes at after which it is Cooled and diluted methanol and toluene re b tl removed i vacuo at with 240 parts of methanol. Traces of insoluble constituents 40 to 50C. 350 parts of a yellowish syrupy prod are bare filtered off from the solution and the methanol and xylene tained. Apart from this, 10 parts of unreacted paraformalremoved f P ofa f y Yellowlsh y dehyde ar ed, product are obtained which on the basis of the formaldehyde On the basis of the formaldehyde content found it can be ascontent found cqn'esponds to the formula The actlve sumed h h Compound f f l 13 i present to the substance content s about 100 percent. The product IS insolutent of about percent. The product is insoluble in water. a The active substance content is about percent.

(18) ClCH: --H:CO O O OCHz-CHz-Cl EXAMPLE8 129.5 parts of 3-[dimethylphosphono]-methylolpropionic acid amide (obtained by methylolation of 3- (dimethylphosphono)-propionic acid amide) together with 31 parts of allylcarbamate and 1 parts of p-toluenesulphonic acid monohydrate are suspended in 200 parts of toluene in the apparatus described in Example 2 and condensed at the reflux temperature of the toluene. After 16 hours the reaction has ended and l 1.5 parts of water have been obtained. Thereafter the mixture is cooled to 100C, 18.7 parts of paraformaldehyde (97.5 percent strength) and 1 part of sodium methy- M I preparation late powder 100 percent strength) are added, and the whole is Constituents treated treated for a further 30 minutes at 100C. It is then cooled to A B C D room temperature, diluted with 240 parts of methanol, traces l5 of insoluble constituents are filtered off, and the methanol and Product according to ex. 1 g/l 322 375 425 372 toluene are subsequently removed in vacuo at 40 to 50C. Lggg lolmelamine 150 parts of a yellow highly viscous product are obtained dimcthylflyhfl (60%) g" 80 8o which shows an active substance content of about 100 percent NHCI g" 4 4 4 4 and which, on the basis of the formaldehyde content found, 20 pH of the re aratio 5.6 5.4 5.8 5.9 corresponds to the formula (21). The product is water-solu- Flamepm "P' ble- After post-washing.

21 O O 0CH3 H3O P CHzOH onion /P\ H3CO/ CH2CHzCONCHz-N-CH2N-O C-CH2-H2C OCH| COOCHzCH=CI-I2 EXAMPLE 9 Burning time (sec.) burns 0 0 0 0 Glowing time (sec.) 0 0 0 O, 53.5 parts of d1methylol-methylcarbamate (obtained by 30 Length of tear (crn) 9.5 9.5 10 11.5 methylolation of methylcarbamate), 71.6 parts of 3- Y Washes b 0 0 0 0 [dimethylphosphono]e-propionic acid amide, l parts of o o o 0 3[bis-2-chlorethylphosphono]-propionic acid amide and l Lang", n (cm) 1| 10 12 part of p-toluenesulphonic acid monohydrate are suspended After 10 NV-4 washes: in 200 parts of toluene in the apparatus described in Example I 35 (sec') bums 0 0 bums 1 Glowing time (sec.) 0 0 O 2, and condensed at the reflux temperature of the toluene. Lens", (em) ()5 10 5 After 2 hours the reaction has ended and 15 parts of water are Crease Resistance 1 obtained. Thereafter the mixture is cooled to room tempera- "8 1(2) 33 3: 3 titre and diluted with 240 parts of methanol. After filtering off Handle, 3 4 5 4 3 traces of insoluble constituents, the methanol and toluene are 40 Explanations f r Table removed in vacuo at 50C. The viscous residue is again trans- 1 V r al test according to DIN 53,906

ferred into the apparatus described in Example 2, but the water separator is removed and replaced by an RC] gas inlet tube. 24.5 parts of paraformaldehyde (97.5 percent strength) and 1.5 parts of magnesium oxide are now added, and the mixture is heated to 100C and treated at this temperature for 30 minutes. The formaldehyde determination of a sample shows that the corresponding free dimethylol compound of the ether of formula 20) has been formed to the extent of about 80 percent. The mixture is now cooled to 60C, diluted with 160 parts of methanol and subsequently cooled to C. Thereafter HCl gas is passed into the methanol solution until a pH of 2.3 to 2.5 is reached, after which the mixture is warmed to the reflux temperature of the methanol and etherification carried out for 1 hour. The pH is 2.3 to 2.5 during the entire etherification reaction. The mixture is now cooled to 60C and neutralized to a pH value of 7.9 with anhydrous sodium car bonate, and then cooled to room temperature, clarified by fil-' tration, and the methanol removed in vacuo at 40C.

The resulting reaction product of formula (22) is a yellowish solid mass. Yield: 214 parts. The product is water-soluble.

minutes at 160C. The woven fabric is now post-washed for 5 minutes at the boil in a solution which per liter of water contains 2 g of anhydrous sodium carbonate, rinsed and dried. A part of the woven fabric is boiled 5 times or 10 times, respectively, for 30 minutes in a solution which contains 2 g of sodium carbonate and 5 g of soap per liter of water SNV-4 wash).

The individual pieces of woven fabric are then tested for their flameproof and creaseproof behavior and handle. The

results of this test are also summarized in the table below:

Treated with 2 Average of 10 measurements 3 Rating scale: 1 =soft 8 stiff in addition to a good, and in most cases durable, flameproofing, a good crease'free effect is thus also achieved with A the preparations A to D, and in particular both with and without the addition of an aminoplast precondensate. Equally, the handle of the fabric finished in this way is only changed little or not at all compared to the handle of the untreated fabric.

EXAMPLE 1 l The flameproof test according to DIN 53,906 shows that the woven fabric has good flameproof properties.

N O-O o 0 00112011201 4 P\ CH2OCHa CHzQ OH; /I\ H3CO/ CHz-CHC ONCH2NCH' NOCCHzH C OCHzCHzCl C O-O- CH:

Constituents Preparation EXAMPLE 10 E A cotton fabric is padded with one of the aqueous liquors A to D of the table below. The liquor uptake is 80 percent. The gzzgg igffiz g ff 2 an 420 365 material is dried at 70 to 80C and thereafter cured for 4% dimethyl-ether (60%) g/l H PO, (85%) g/l 30 30 carbon atoms, a hydroxyalkyl radical with at most four carbon Phmphoms 47 atoms, an alkenyl radical with two to 22 carbon atoms, a phenyl, a chloroor bromo substituted phenyl, a benzyl or a chloro EXAMPLE 12 or bromo substituted benzyl radical.

50 parts of the 80% strength aqueous solution of the products according to Example 3, 5 parts of pentamethylolmelaminemethyl-ether and 0.25 part of Nl-LC] are diluted with water to 100 parts by volume of aqueous solution. A polyester-cotton mixed fabric (50:50 mixing ratio) is impregnated with this solution, dried at 80C and cured for 4% minutes at 160C. The deposit on the fabric is 28.5 percent by 2. A phosphorus compound according to claim 1 in which A is an alkyl radical with at most 22 carbon atoms, a chloro or bromoalkyl radical with at most four carbon atoms, an alkenyl radical with two to 22 carbon atoms, a phenyl, a chloro or bromo substituted phenyl, a benzyl or a chloro or bromo substituted benzyl radical.

3. A phosphorus compound according to claim 1 of the formula weight. The flameproof test according to DIN 53,906 shows that the woven fabric has good flameproof properties.

4. A phosphorus compound according to claim 1 of the formula EXAMPLE 13 A cotton fabric is padded with one of the aqueous liquors G 35 to R of the table below. The liquor uptake is 84 percent. The goods are dried at 70 to 80C and cured for minutes at 145C.

The flameproof test according to DIN 53,906 shows that the fabrics finished in this way have good flameproof properties.

Preparation g./l.

Constituents (i II J K L M N O 1 Q, B

Preparation according to example 9 470 Pentamethylolmelamine-dimethyl-ether (60%) Condensation product of 1 mol of p-tert.-nonylphenol an 0 mols of ethylene oxide 20 20 20 20 20 20 20 H PO4 (85%) 30 30 30 30 30 30 30 30 30 30 30 Phosphorus 47 7 47 47 47 47 41 41 41 41 41 4! We claim: 1. A phosphorus compound of the formula R1O\ /O P CH2OY CI-I- O-Y' l I R2O CH; (IJHC ONCII2NCII- NCO-CI[1IzO 0-It'2 X (l) O X in which R R R, and R each is an alkyl, alkenyl, chloroor bromoalkyl radical with at most four carbon atoms, X and X each is a methyl radical or a hydrogen atom, Y and Y each is an alkyl radical with at most four carbon atoms or a hydrogen atom and A is an alkyl radical with at most 22 carbon atoms, a chloroor bromoalkyl radical with at most four 6. A phosphorus compound according to claim 5, in which A is an alkyl radical with at most four carbon atoms.

7. The phosphorus compound according to claim 1 of the formula I (J (rm-4:11

8. The phosphorus compound according to claim 1 of the and formula b'. 1 mol of a carbamate of the formula HaC-O O O 0-4 11;

9. The phosphorus compound accordlng to claim I of the 2- formula mi 0 0 0 ()Ull;

's I (11mm 01mm 1 Br Br 10. A process for the manufacture of a phosphorus comin which the [LN-group of component (a) is monopound as claimed in claim 1, which comprises reacting methylolated or the H,N group of component (b) is dia. a condensation product of methylolated, with a. 2 mols of at least one compound of the formula b. 2 mols of formaldehyde or a formaldehyde-releasing agent, at 60 to 150C. R1 0\ 11. A process according to claim 10 wherein the reaction P product is etherified'with l to 2 mols of an alkanol with at \CHPOH CO NH2 most four carbon atoms.

X 2 5 i i t 23 UNITED STATES PATENT OIFFICE CERTIFICATE OF CORRECTION Patent No. 3,679,77 Dated July 251L v1972 Inventor) HERMAN NACHBUR ET AL It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 1 4, claim 7, line 73, the claim should read as follows.

H C-O O O O-CH 3 CH OH 1 GH -OH l I H3 0 o c11 CH2 CO--N CH N- -CH2 N CO cH H20 0- H COO-CH Signed and sealed this 2nd day of April 197R.

(SEAL) Attest:

EDWARD M.FLETCHER,JR. c. MARSHALL DANN Attesting Officer 1 Commissioner of Patents 

2. A phosphorus compound according to claim 1 in which A is an alkyl radical with at most 22 carbon atoms, a chloro or bromoalkyl radical with at most four carbon atoms, an alkenyl radical with two to 22 carbon atoms, a phenyl, a chloro or bromo substituted phenyl, a benzyl or a chloro or bromo substituted benzyl radical.
 3. A phosphorus compound according to claim 1 of the formula
 4. A phosphorus compound according to claim 1 of the formula
 5. A phosphorus compound according to claim 4, in which R1 is a methyl or ethyl radical, Y is a methyl radical or a hydrogen atom and A is an alkyl radical with at most 18 carbon atoms, a chloro-or bromoalkyl radical with at most three carbon atoms, a hydroxyalkyl radical with at most three carbon atoms or an alkenyl radical with two to four carbon atoms.
 6. A phosphorus compound according to claim 5, in which A is an alkyl radical with at most four carbon atoms.
 7. The phosphorus compound according to claim 1 of the formula
 8. The phosphorus compound according to claim 1 of the formula
 9. The phosphorus compound according to claim 1 of the formula
 10. A process for the manufacture of a phosphorus compound as claimed in claim 1, which comprises reacting a. a condensation product of a''. 2 mols of at least one compound of the formula and b''. 1 mol of a carbamate of the formula A-O-CO-NH2 in which the H2N-group of component (a'') is mono-methylolated or the H2N group of component (b'') is di-methylolated, with b. 2 mols of formaldehyde or a formaldehyde-releasing agent, at 60* to 150*C.
 11. A process according to claim 10 wherein the reaction product is etherified with 1 to 2 mols of an alkanol with at most four carbon atoms. 